function number_format(number, decimals, dec_point, thousands_sep) 
{
     number = (number + '').replace(/[^0-9+-Ee.]/g, '');
     var n = !isFinite(+number) ? 0 : +number,
         prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
         sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
         dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
         s = '',
         toFixedFix = function (n, prec) {
             var k = Math.pow(10, prec);
             return '' + Math.ceil(n * k) / k;
         };
 
     s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
     var re = /(-?\d+)(\d{3})/;
     while (re.test(s[0])) {
         s[0] = s[0].replace(re, "$1" + sep + "$2");
     }
 
     if ((s[1] || '').length < prec) {
         s[1] = s[1] || '';
         s[1] += new Array(prec - s[1].length + 1).join('0');
     }
     return s.join(dec);
  }
